The New Jersey chapter of the American Civil Liberties Union has sent public records requests to nearly two-dozen local police departments, and several state law enforcement agencies, in an effort to learn if they are using the new controversial Automatic License Plate Readers.

The readers, often referred to as ALPR's, can track the movement of drivers, even if those drives are not the subject of an investigation. The New Jersey ACLU, and its sister chapters across the country, feel the use of ALPR's poses a threat to the privacy rights of drivers. WBAI's Jose Santiago spoke to Ed Barocas, NJ-ACLU's legal director.